🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.78

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.5 AU - 0.52 AU

Year: 235 Days

Day: 18.4 Hours

Environment

Temp: -122 °C

Axial Tilt: 31 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.37

Radius: 0.67

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.51 AU - 0.65 AU

Year: 285 Days

Day: 16.4 Hours

Environment

Temp: -117 °C

Axial Tilt: 25.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565

Radius: 11.1

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.69 AU - 0.71 AU

Year: 378 Days

Day: 12.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,290,346 km

• M1: 138,079 km (0.086 R)
• M2: 540,796 km (0.117 R)
• M3: 931,097 km (0.112 R)
• M4: 1,387,520 km (0.051 R)
• M5: 1,770,491 km (0.101 R)
• M6: 2,233,047 km (0.059 R)
• M7: 2,834,431 km (0.044 R)
• M8: 3,249,715 km (0.068 R)
• M9: 3,911,984 km (0.081 R)
• M10: 4,269,074 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31

Radius: 14.7

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.91 AU - 0.91 AU

Year: 561 Days

Day: 6.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 25,290,346 km

• M1: 183,257 km (0.057 R)
• M2: 647,011 km (0.077 R)
• M3: 1,137,841 km (0.113 R)
• M4: 1,627,176 km (0.051 R)
• M5: 2,215,245 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.9

Radius: 13.2

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.96 AU - 1.04 AU

Year: 646 Days

Day: 13.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,290,346 km

• M1: 164,857 km (0.102 R)
• M2: 626,366 km (0.078 R)
• M3: 1,069,475 km (0.113 R)
• M4: 1,518,269 km (0.111 R)
• M5: 1,973,645 km (0.107 R)
• M6: 2,502,174 km (0.084 R)
• M7: 2,941,393 km (0.117 R)
• M8: 3,503,582 km (0.079 R)
• M9: 4,017,451 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.8

Radius: 10.6

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.64 AU - 2.46 AU

Year: 1895 Days

Day: 10.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,290,346 km

• M1: 131,945 km (0.093 R)
• M2: 628,012 km (0.098 R)
• M3: 986,598 km (0.091 R)
• M4: 1,424,920 km (0.085 R)
• M5: 1,948,512 km (0.096 R)
• M6: 2,531,645 km (0.104 R)
• M7: 3,748,175 km (0.081 R)
• M8: 4,773,369 km (0.065 R)
• M9: 6,996,393 km (0.11 R)
• M10: 7,757,398 km (0.086 R)
• M11: 8,693,731 km (0.068 R)
• M12: 10,169,514 km (0.039 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.1

Radius: 8.1

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 3.29 AU - 3.39 AU

Year: 3941 Days

Day: 14.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 134.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 25,290,346 km

• M1: 100,679 km (0.107 R)
• M2: 423,063 km (0.07 R)
• M3: 759,359 km (0.099 R)
• M4: 1,264,700 km (0.026 R)
• M5: 2,264,613 km (0.064 R)
• M6: 2,564,257 km (0.113 R)
• M7: 2,999,886 km (0.096 R)
• M8: 3,260,785 km (0.058 R)
• M9: 3,772,858 km (0.054 R)
• M10: 4,038,544 km (0.111 R)
• M11: 4,398,776 km (0.04 R)
• M12: 5,346,777 km (0.096 R)
• M13: 6,424,780 km (0.041 R)
• M14: 6,860,708 km (0.07 R)
• M15: 7,492,310 km (0.105 R)
• M16: 7,761,586 km (0.11 R)
• M17: 8,162,060 km (0.111 R)
• M18: 8,479,357 km (0.085 R)
• M19: 9,411,950 km (0.107 R)
• M20: 10,301,010 km (0.113 R)
• M21: 10,671,863 km (0.106 R)
• M22: 11,401,153 km (0.11 R)
• M23: 13,303,739 km (0.108 R)
• M24: 14,057,712 km (0.097 R)
• M25: 15,313,137 km (0.049 R)
• M26: 15,992,611 km (0.102 R)
• M27: 16,793,857 km (0.074 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.6

Radius: 11

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 3.78 AU - 4.08 AU

Year: 5030 Days

Day: 11.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 25,290,346 km

• M1: 138,827 km (0.117 R)
• M2: 731,384 km (0.081 R)
• M3: 1,178,682 km (0.092 R)
• M4: 1,640,341 km (0.117 R)
• M5: 2,294,083 km (0.105 R)
• M6: 3,060,024 km (0.051 R)
• M7: 3,473,513 km (0.098 R)
• M8: 4,367,510 km (0.088 R)
• M9: 6,917,854 km (0.027 R)
• M10: 7,270,157 km (0.079 R)
• M11: 13,307,329 km (0.102 R)
• M12: 13,703,464 km (0.079 R)
• M13: 15,529,755 km (0.107 R)
• M14: 16,814,950 km (0.076 R)
• M15: 17,512,974 km (0.104 R)
• M16: 24,691,428 km (0.096 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 258 - 20,144 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit